No abstract

Lactic acid has recently been drawing much interest as a raw material for biodegradable polymer. One of the promising technologies for recovery of lactic acid from fermentation broth is reactive liquid-liquid extraction. Equilibrium studies on the reactive extraction of lactic acid with trioctylamine (TOA) in various organic phases and its re-extraction into aqueous solutions were carried out. In this study distribution coefficient, extractability, stripping efficiency of various active and inert diluents with TOA as extractant were investigated, which were higher for active diluents. The effects of operating temperature, speed of agitation, agitation time and diluent composition on extraction efficiency were also studied. Temperature and extraction efficiency were inversely proportional to each other, whereas extraction efficiency was little affected by speed of agitation and agitation time.

The aim of this study was to optimize the encapsulation of lycopene using response surface methodology and to determine its stability.

The orange is 5 th most important tropical fruit in the world production. The juice or pulp is extracted from the oranges and preserved for further use. Whereas for fruits and vegetables, osmotic dehydration is considered as one of best method for preservation. Hence in the present research focus on optimize process conditions for osmotic dehydration of orange segments. Fresh orange fruits were peeled and segments were separated. These segments were osmotically dehydrated at different sugar syrup concentrations 40 to 70 0 B, time 60 -300 min. and fruit solution ratio 1:3 to 1:5. The observation recorded with respect to water loss (WL), solid gain (SG) and weight reduction (WR). The results showed 50 0 B sugar syrup concentration, 300 min. time, and 1:4 fruit to solution ratio were optimum conditions to obtain water loss of 44.49 %, solid gain 6.91 % and weight reduction of 51.40%. Osmotic dehydration can be one of the alternative methods for the orange preservation than the traditional methods of food preservations. Also, it will be helpful to preserve orange segments for the longer time, which will be beneficial to small scale entrepreneur to improve their socio-economical status.

Aim: The present study focused on extraction of lycopene from tomato processing industry waste, its purification and characterization by different methods. Lycopene is major carotenoid found in tomato. Methodology: Different tomato parts like whole tomato, tomato peel and waste generated druing processing were also screened for lycopene content. The extracted lycopene was purified by crystallization method. The purified lycopene was characterized by the different methods live UV- spectroscopy, HPLC, FT-IR and NMR. Results: Among the different parts of tomato the peel (377.19±1.13 µg/g) contain highest amount of lycopene than industrial waste (175.15±1.09 µg/g) and whole tomato (82.82±0.79). The crystallization method significantly purify the lycopene content which was clearly resulted in UV-spectroscopy, HPLC, FT-IR and NMR results. Conclusion: This will be beneficial to the industry for purification and characterization of lycopene from tomato processing industry waste.